package com.jingyuan.common.entity.utils;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

public class SpringUtil implements ApplicationContextAware {

    private static ApplicationContext applicationContext = null;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {

        if(SpringUtil.applicationContext == null){
            SpringUtil.applicationContext  = applicationContext;
        }
        System.out.println("---------------------------------------------------------------------");
        System.out.println("---------------------------------------------------------------------");
        System.out.println("---------------com.jingyuan.common.entity.utils.SpringUtil------------------------------------------------------");
        System.out.println("========ApplicationContext配置成功,在普通类可以通过调用SpringUtils.getAppContext()获取applicationContext对象,applicationContext="+SpringUtil.applicationContext+"========");
        System.out.println("---------------------------------------------------------------------");

    }

    //获取applicationContext

    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }

    //通过name获取 Bean.

    public static Object getBean(String name){

        return getApplicationContext().getBean(name);

    }
    //通过class获取Bean.

    public static <T> T getBean(Class<T> clazz){
        return getApplicationContext().getBean(clazz);
    }

    //通过name,以及Clazz返回指定的Bean

    public static <T> T getBean(String name,Class<T> clazz){
        return getApplicationContext().getBean(name, clazz);
    }

}
